Some power problem or some thing may stop OTC trading on that day so that it makes sure there will be no run in the PPS. That's what actually happened last two times. IMO.
That means nothing as long as a restructuring is in the wind
I am betting that Fannie and Freddie get combined into a new single entity this year. It will be a government entity with no common or preferred stocks. They will continue to operate privately just like FHA.